Apple today unveiled a completely new iMac with a thinner design, brilliant display with reduced reflection, and faster processors. According to the company, with third generation Intel quad-core processors, powerful NVIDIA graphics and an innovative new storage option called Fusion Drive, the new iMac is the most advanced desktop Apple has ever made.

"With a stunning design, brilliant display and faster performance, we've made the world's leading all-in-one desktop computer better in every way," said Philip Schiller, Apple's senior vice president of Worldwide Marketing. "The all-new iMac is unbelievably thin, yet packs an incredible amount of performance and technology into our most innovative desktop."

The 21.5-inch iMac is available with a 2.7 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.2 GHz and NVIDIA GeForce GT 640M for a suggested retail price of $1,299; and with a 2.9 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GT 650M for a suggested retail price of $1,499.

The 27-inch iMac is available with a 2.9 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GTX 660M for a suggested retail price of $1,799; and with a 3.2 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GTX 675MX for a suggested retail price of $1,999.

How fast are these processor speeds compared to a Mac Pro of five years ago? Is the iMac getting close to the performance of the older Mac Pros?

How soon until the Mac Pro's aren't really needed anymore?

Video production is the only thing I do that takes up plenty of CPU power. I don't make professional movies for TV or theaters. I create them for the internet. I'll never need a Mac Pro. As a curious user I realize that one day (maybe already) some professionals will decide that the iMac is fast enough for them. Is that true yet?